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Future Implications Of Extreme Heat On Public Health For Those Living In Lincoln, Nebraska, Mandy Koehler

Department of Environmental Studies: Undergraduate Student Theses

Increasing temperatures are expected as the climate crisis progresses. This crisis is fueled by the increasing amount of greenhouse gas emissions being released into the atmosphere, which trap heat in the environment. With rising temperatures, more extreme heat events threaten multiple sectors of society including public health. To gain insight into future climate issues related to warming temperatures and public health for people living in Lincoln, Nebraska, this research will evaluate the predicted extent of extreme heat for this area and consider what other relevant regions do to deal with these problems. This study identifies the scope of future extreme …

To What Extent Has The Relationship Between Humans And Red Foxes (Vulpes Vulpes) Evolved Throughout History?, Abigail Misfeldt

Department of Environmental Studies: Undergraduate Student Theses

Red foxes are one of the few creatures able to adapt to living alongside humans as we have evolved. All humans and wildlife have some id of relationship, be it a friendly one or one of mutual hatred, or simply a neutral one. Through a systematic research review of legends, books, and journal articles, I mapped how humans and foxes have evolved together. First, the relationship between humans and foxes in a geographical manner by starting in Asia, moving to Australia and Tasmania, then Europe, Africa, finishing with North and South America. I will be analyzing all the information through …

On Geometric Design Rules And In-Process Build Quality Monitoring Of Thin-Wall Features Made Using Laser Powder Bed Fusion Additive Manufacturing Process, Aniruddha Gaikwad

Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research

The goal of this thesis is to quantify the link between the design features (geometry), in-process signatures, and build quality of parts made using the laser powder bed fusion (LPBF) additive manufacturing (AM) process. This knowledge is the foundational basis for proposing design rules in AM, as well as for detecting the impending build failures using in-process sensor data.

As a step towards this goal, the objectives of this work are two-fold:

1) Quantify the effect of the geometry and orientation on the build quality of thin-wall features. To explain further, the geometry related factor is the ratio of the …

Association Between Factors Related And Stress, Depression And Suicidal Risk Among Health Care Personnel During Covid-19 Second Outbreak In Thailand, Aphichaya Polrak

Chulalongkorn University Theses and Dissertations (Chula ETD)

Health care personnel are one of most affected by COVID-19 situation. The aim of this study was to identify the prevalence of stress, depression and suicidal risk and associated factors among health care personnel during COVID-19 second outbreak in Thailand. This study was cross-sectional study, which used secondary data collected during December 17, 2020 to February 23, 2021. Total of 4,970 health care personnel participated in this research. The instruments of this research were ST-5, 9Q and 8Q. Multivariable logistic regression analysis was performed to identify factors associated with stress, depression and suicidal risk outcomes. The prevalence of stress, depression …

Prevalence And Factors Associated With Maternal Near-Miss In Magway Regional Hospital, Magway, Myanmar, Aye Myo Thet

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: Maternal mortality is an important public health concern. Women die every day from pregnancy complications, delivery-related issues, and childbirth. Pregnancy related morbidity and mortality in Myanmar were dramatically increased from 17.6% in 2012 to 20.2% in 2018. In Myanmar, there are limited studies on maternal near miss. Therefore, this study aimed to estimate the prevalence and determine the factors associated with maternal near miss in Magway Regional Hospital, Myanmar. Method: This cross-sectional study employed a health facility-based secondary data analysis to estimate the prevalence of maternal near miss cases, and examine factors associated with maternal near miss in Magway …

Artificial Neural Network For Pulmonary Rifampicin Resistant Tuberculosis Screening Indonesia : A Study In Accuracy And Cost-Effectiveness Analysis Of The Model, Bumi Zulheri Herman

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: Diagnosis of Pulmonary Rifampicin Resistant Tuberculosis (RR-TB) with the Drug-Susceptibility Test (DST) is costly and time-consuming, and the GeneXpert for rapid diagnosis is not widely available in Indonesia. This study aims to develop an Artificial Neural Network model and evaluate the deployed model performance for RR-TB screening. Methods: A cross-sectional study involved suspected RR-TB patients with complete sputum Lowenstein Jensen DST (reference) and 19 clinical, laboratory, and radiology parameter results, retrieved from medical records in hospitals under the Faculty of Medicine, Hasanuddin University Indonesia, from January 2015-December 2019. The Artificial Neural Network (ANN) models were built along with other …

Phytochemical Screening, In Vitro Antimalarial Activity And Genetic Diversity Of Selected Asteraceae Medicinal Plants Indigenous To Thailand, Desy Liana

Chulalongkorn University Theses and Dissertations (Chula ETD)

The emergence of artemisinin resistance leaded the effort to find the new antimalarial drug or artemisinin activity booster. Due to the chance that secondary metabolites can be evolutionary conserved, combining phylogeny with ethnobotanical data for screening antimalarial activity may be helpful to predict bioactivity and minimize the expenditure and time for laboratory research. The aimed of this study is screening the antimalarial activity, phytochemicals and genetic diversity of selected Asteraceae medicinal plants generated by combinatorial phylogeny and ethnobotanical data. 733 medicinal plants were obtained from literature search however only 340 taxa were met the inclusion and exclusion criteria hence these …

Effects Of Mcs Program On Brain-Derived Neurotrophic Factor, Interleukin-6, 25-Hydroxy Vitamin D And Depression Among Office Workers With Mild Depression, Chirra Taworntawat

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: Globally, major depressive is the primary cause of disability. A large part of cases is reported among the working-class. Literature reviews suggest that the disorder is tied in with immune dysregulation and inflammatory response. This study aimed to assessed MCS (mindfulness meditation + curcumin supplementation + sunlight exposure) program by comparing with a control group among mildly depressed office workers. Methods: A quasi experiment was conducted with a total of 68 male and female office workers, n=34 being treatment group (TG) and n=34 being control group (CG). The groups were compared in terms of (a) serum brain-derived neurotrophic factor …

Determinants Of Maternal Health Services Utility Among Adolescent Mothers In Indonesia : An Analysis Of 2017 Indonesia Demographic And Health Survey, Dewi Nuryana

Chulalongkorn University Theses and Dissertations (Chula ETD)

Maternal Mortality Ratio (MMR) in Indonesia remains high with 305 death per 100,000 live birth in 2015. Approximately 36 of 1000 adolescent girls (15-19 years old) in Indonesia experienced childbirth and face the higher risk for maternal mortality than older women. The aims of this study are to assess maternal health services utility (antenatal care (ANC), delivery services, and postnatal care (PNC)) level and to identify determinants of maternal health services utility among adolescent mothers in Indonesia. The design of this study is cross-sectional survey using secondary data from 2017 Indonesia Demographic and Health Survey (IDHS). The study population is …

Pharmacognostic Specification And Rotenone Content In Derris Elliptica Stems, Macroscopic, Microscopic And Molecular Identification Of Selected Derris Species In Thailand, Krittapat Phairoh

Chulalongkorn University Theses and Dissertations (Chula ETD)

The genus Derris belonging to Fabaceae family are distributed along the equatorial zone in Africa and Asia. In Thailand, 16 species of Derris species can be found throughout the country. Derris elliptica (Hanglai-Dang), is well-known among fishermen and gardeners as fish poison and insecticide, especially the stem and root which contain isoflavonoid compound named rotenone. This study established the pharmacognostic specification of Derris elliptica dried stem crude drug and developed the quantitative analysis of rotenone content in D. elliptica stem using TLC-densitometry and image analysis. The physico-chemical parameters of D. elliptica stem included total ash, acid-insoluble ash, loss on drying …

Genetic Diversity Of Merozoite Surface Protein 1 Gene Of Plasmodium Falciparum In Thailand, May Myat Thu

Chulalongkorn University Theses and Dissertations (Chula ETD)

In 2030, World health organization's target is to eliminate malaria at least in 35 countries. At present, Thailand is low risk of malaria so that, it has the potential to eliminate. About 10 years ago, malaria prevalence was high along the country border areas. To prevent the recurrence in those areas, evaluation of drug susceptibility of parasites and vaccine are important. Therefore, basic knowledge on genetic diversity in malaria parasite is needed. Merozoite surface protein 1(msp1), one of the vaccine candidate genes, is useful for monitoring genetic diversity of the parasite and the potential gene of vaccine. However, high diversity …

Cost Effectiveness Of Oral Health Care Program Implementation In Primary School In Bangkok, Thailand, Nicha Luksamijarulkul

Chulalongkorn University Theses and Dissertations (Chula ETD)

Dental caries are common oral diseases in schoolchildren. This retrospective cohort analysis was done to assess caries prevalence, risk and protective factors associated permanent caries among 433 children profiles of school children in selected primary school in Bangkok who received or did not receive a preventive program. Additionally, a cost effectiveness of the program was analyzed. Result revealed that there was high caries prevalence in deciduous teeth (1st grade) 87.2% and mean dmft 6.44 (± 4.4) and caries prevalence in permanent teeth (6th grade) 51.7% and mean DMFT 1.37 (± 1.84). Risk and protective factors associated permanent caries, after logistic …

Factors Associated With Knowledge And Awareness Of Syphilis Among The Youths Visiting Family Planning Clinics, Bangkok, Thailand, Nutcha Tattanon

Chulalongkorn University Theses and Dissertations (Chula ETD)

Syphilis has been controlled since 1960. However, syphilis is now reappearing in some areas in Africa and South-east Asia including Thailand. In Thailand, syphilis is reappearing in all regions. The most high-risk population is the youth aged 15-24 year. Objective of this study aimed to determine factors associated with knowledge and awareness of syphilis prevention among youths visiting at family planning clinic, Bangkok, Thailand. Method of this study was a cross-sectional study conducted by purposive sampling among the youth aged 15-24 years old who visit at PPAT family planning clinic, Bangkok, Thailand during April-June 2021. Multivariable logistic regression analysis was …

Factors Associated With Retirement Preparation Among Formalworkers In Near Retirement Age: A Cross-Sectional Study, Nuttapat Kulabut

Chulalongkorn University Theses and Dissertations (Chula ETD)

In the past few decades, the fast-growing life expectancy has raised concern over retirement issues worldwide, including in Thailand. While insufficient preparation for retirement has been known to link with negative impacts on both physical and mental health of retirees, there is still little research done on retirement preparation and planning among the Thai older person. Thus, the present study aims to determine the level of retirement preparation among formal workers at near retirement age in a public sector. This study was conducted in May-June 2021 via a 45-minute self-administered questionnaire with 226 participants aged 55-59 years old; participants were …

Pharmacognostic Specifications And Chlorogenic Acid Content Of Morus Alba Linn. Leaves In Thailand, Phimkun Aiyarakanchanakun

Chulalongkorn University Theses and Dissertations (Chula ETD)

Morus alba Linn., belonging to Moraceae family, is commonly used as an herb. M. alba leaves are widely used in traditional Chinese medicine and Thai traditional medicine. It used to treat colds caused by wind-heat, sore throat, cough, eye inflammation, etc. This study aimed to investigate the pharmacognostic specifications and analyze the content of chlorogenic acid in M. alba leaves. M. alba leaves were collected from 15 different sources throughout Thailand. The fresh mature leaves were used for macroscopic and microscopic evaluations. The macroscopic details were illustrated as drawings. The microscopic evaluation showed the details of the leaf constant number …

Pharmacognostic Specification And Rosmarinic Acid Content Of Mentha Cordifolia Leaves And Stems In Thailand, Ploychat Chamnanthongpiwan

Chulalongkorn University Theses and Dissertations (Chula ETD)

Mentha cordifolia Opiz ex Fresen. is one of the popular Thai kitchen herbs due to its unique aroma and benefits to human health such as helping to relieve colds, fever, motion sickness and poor digestion problems. This study aimed to specify the quality parameters of M. cordifolia dried leaves and stems with special reference to rosmarinic acid (RA) contents. The pharmacognostic specifications of leaf and stem crude drugs were investigated including microscopic cross-sectioning of leaf and stem as well as leaf constant numbers; physico-chemical contents i.e. acid-insoluble ash, total ash, loss on drying, moisture, extractive matters and volatile oil. The …

Effect Of Social Media Model To Improve Sexual Health Literacy Among Secondary School Female Students In Southern Provinces, Thailand: A Quasi Experimental Study, Premyuda Narkarat

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background/Objectives: Adolescent pregnancy is one of major public health issues globally and in Thailand. Female adolescents are at high risk of sexual and reproductive health problems like unintended pregnancies, abortion, childbirth related complications including sexually transmitted diseases (STDs) and AIDS due to poor sexual health literacy (SHL). Sexual health literacy (SHL) is one of very important factors to prevent teenage pregnancy. The aim was to examine the effect of social media model to improve sexual health literacy among secondary school female students in southern provinces of Thailand. Method: This study employed a quasi-experimental research design using two groups the intervention …

Improving Routine Immunization Coverage Through Strengthening Interpersonal Comminication Skills Of Primary Health Care Workers In Rural Local Government Areas In Kebbi State Nigeria, Saudat Abdullahi Basheer

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: In 2015, Kebbi state was among the four (4) states in northwestern Nigeria that have low routine immunization performance in the country. National Nutrition and Health Survey 2015 report indicated that only 7.8% of the eligible children have received three doses of DPT/Penta and measles coverage was 14.7%. There was no documented research to investigate the effect of interpersonal communication skills on routine immunization services in Kebbi state Nigeria. The objective of this study, therefore, was to examine the effect of vaccination education on improving mothers' knowledge and uptake of routine immunization services among children in the rural LGAs …

Knowledge, Attitude, And Practice Towards Social Distancing Among Undergraduate Students In Medical Fields During Rapid Rise Of Covid-19 In Samarinda City, Indonesia : A Cross Sectional Study, Siti Hadijah Aspan

Chulalongkorn University Theses and Dissertations (Chula ETD)

Social distancing is health guidelines recommended by World Health Organization (WHO) for controlling the COVID-19 transmission. Undergraduate students in medical fields had responsibility in spreading accurate health promotion during this prolong pandemic. This study aimed to determine the practice of social distancing and its associated factors, to find out the reasons for not practicing social distancing along with the source of social distancing information used by undergraduate students in medical fields in Samarinda, Indonesia. This cross-sectional online survey study (April to May 2021) involved 422 undergraduate students from medicine, public health and pharmacy faculty using convenience sampling technique. Binary logistic …

A Social Ecology Of Sexual Health And Well-Being Among Older Gay Men And Transgender Women In Chiang Mai, Thailand: A Qualitative Study, Suchon Tepjan

Chulalongkorn University Theses and Dissertations (Chula ETD)

With increasing ageing populations in Thailand, including sexually diverse communities, there has been little attention to older gay men and transgender women regarding their sexual health and well-being. Several international studies indicated that these communities have been underserved, especially in countries that lack human rights to protect against social and cultural stigma. The well-being of this population, that had experienced discrimination, victimization, and identity concealment in their early years, could have been better understood through open-ended exploration. This study explores the social-ecological factors contributing to the sexual health of older gay men and transgender women in Chiang Mai. This qualitative …

Association Between Smartphone Addiction And Mental Health Among High School Students In Bangkok, Thailand: A Cross-Sectional Study, Suphasuta Doungraksa

Chulalongkorn University Theses and Dissertations (Chula ETD)

The technology today is rapidly and continuously intervening into people's lives, and when people become too addict to electronic devices has shown series of abnormality of health problems which including both physical and mental. As it mentioned, the study aims to examine the relationship of smartphone addiction and mental health specifically in depression, anxiety, and stress. This study aims to investigate the relationship between smartphone addiction and mental health among high school students in Bangkok, Thailand. There were sample of 420 high school students in Bangkok, Thailand who participated in self-administrated questionnaires for a cross-sectional study of smartphone addiction and …

Unit Cost Analysis Of Acute Respiratory Infection (Ari) Clinic For Covid-19 Screening At Bangbuathong Hospital, Nonthaburi, Thailand, Tharit Mongkol

Chulalongkorn University Theses and Dissertations (Chula ETD)

The COVID-19 outbreak has affected the services of all hospitals in Thailand, especially making their financial position at risk of bankruptcy. Although managing the cost of health care services for COVID-19 effectively can help reduce that risk, but very few researches has been done and analyzed on these issues. This study aimed to identify the unit cost and cost recovery of Acute Respiratory Infection (ARI) clinic for COVID-19 screening at Bangbuathong Hospital. This research was a descriptive study by retrospective data collection from hospital recorded and database of costs of ARI clinic between March to May 2021, which was the …

Brain-Derived Neurotrophic Factor (Bdnf) Levels And Subjective Sleep Quality In The First Trimester Of Pregnancy Among Myanmar Migrant Workers In Samut Sakhon Province, Thailand: A Secondary Data Analysis, Thuvachit Kriengtuntiwong

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: During pregnancy, mother will face many challenges in this time because so many things will change to their health, mental health, family and social. Result from these change lead pregnant woman to have mental illness both antepartum and postpartum period. Depression and poor sleep quality are common mental health problem during pregnancy, and these symptoms have effect to mother and child health. Brain-derived neurotrophic factor (BDNF) is one of the biomarkers that association with depression and sleep quality during pregnancy. Migrant people are risk group that will have treatment gap from Thailand health system. Samut Sakhon is the province …

Impact Of Covid-19 Pandemic On The Mental Health Of Health Care Personnel From Government Hospitals In Yangon Region, Myanmar, Za Mae Nin Sar Aung

Chulalongkorn University Theses and Dissertations (Chula ETD)

The outbreak of COVID-19 has disastrously impacted on the human being resulting with a great number of deaths and somewhat negative mental health outcomes across the countries. A dramatic rise in transmission and death rate had profoundly hit Myanmar during the second wave especially in epicenter Yangon. The burden of managing COVID-19 have led the health care personnel (HCP) into both physical and mental exhaustion.This study intended to estimate mental health impact among HCP by quantifying the magnitude of symptoms of depression, anxiety, and stress and to determine associated factors. A cross-sectional, online based self-administered questionnaire was used to gather …

Development Of Nutritionally Complete Oral Nutritional Supplement Using Tapioca Maltodextrin As A Carbohydrate Source, Junaida Astina

Chulalongkorn University Theses and Dissertations (Chula ETD)

Carbohydrate is a major composition in oral nutrition supplement. Modification of carbohydrate composition using tapioca resistant maltodextrin (TRM) may improve the glycemic response. This study aimed to investigate the effect of TRM and TRM containing-ONS on glycemic response, satiety, and gastrointestinal (GI) tolerability in healthy individuals. Physicochemical properties and sensory evaluation of developed ONS were also investigated. In Phase I, the peak of plasma glucose and insulin response after TRM (50 g) ingestion was lowest compared to 50 g glucose (GL) and tapioca maltodextrin (TM) in 16 healthy participants. Peak of plasma glucose of TRM, GL, and TM were 104.60±2.63, …

Protective Effects Of Tiger Milk Mushroom (Lignosus Rhinocerus) Extracts On Oxidative Stress-Induced Neurotoxicity And Aging In Ht22 Cells And C. Elegans, Parinee Kittimongkolsuk

Chulalongkorn University Theses and Dissertations (Chula ETD)

Lignosus rhinocerus (LR) or Tiger Milk Mushroom, a fork medicinal mushroom, has been reported for several pharmacological effects including asthma treatment, anti-inflammatory, anti-proliferative, immuno-modulating effects, promote neurite outgrowth in PC-12 cells, anti-HIV-1 activity, and antioxidants properties. However, the antioxidant properties have only focus on in vitro and no or few studies have reported their protective effects in mouse hippocampal (HT22) cells and Caenorhabditis elegans (C. elegans). This study aims to investigate the neuroprotective effect of three extracts of LR against oxidative stress in both HT22 cells and. C. elegans as well as longevity in C. elegans. In HT22 cells, we …

Maternal Knowledge, Attitude And Practices On The Dietary Omega 3 And 6 In Children Aged 1-2 Years Old In Labuhanbatu Utara Regency, Indonesia, Sinar Yunita Purba

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: Indonesia is one of the countries with low quality human resources including the issue on cognitive performances from brain functioning creativity. In the effort to fulfil Omega 3 and 6 in children aged 1-2 years, the most responsible person to the period are mothers. Therefore, the study aimed to determine the level of maternal knowledge, attitude, and practices and factors associated with the dietary omega 3 and 6 consumption in children aged 1-2 years old in Labuhanbatu Utara, Indonesia. Method: This cross-sectional study was conducted among 428 mothers of children aged 1-2 years using a face-to-face interview with a …

The Inhibitory Effects Of Anthocyanin-Rich Thai Berry Extracts On Carbohydrate Digestion, Glycation And Adipogenesis, Pattamaporn Aksornchu

Chulalongkorn University Theses and Dissertations (Chula ETD)

Several studies have reported the benefits of anthocyanin-rich berries on improving human health. However, the effect of Thai berries on delaying carbohydrate digestion, antioxidant properties, glycation inhibition, and anti-adipogenesis have not been investigated. Therefore, the present study aimed to determine the potential of anthocyanin-rich Thai berry extracts from Antidesma bunius or Mamao (ABE), Lepisanthes rubiginosa or Mahuat (LRE) and Syzygium nervosum or Makiang (SNE) on the inhibition of carbohydrate digestive enzymes, the antioxidant activity, anti-glycation, and anti-adipogenic property. In this study, total phenolics, total anthocyanins, and cyanidin-3-glucoside (C3G) contents of the anthocyanin-rich Thai berry extracts were 237.90-300.91 mg GAE/ g …

Effect Of Rd43 Rice (Oryza Sativa L.) On Starch Digestibility, Physicochemical Properties, Glycemic Responses And Food Applications, Phim On Suklaew

Chulalongkorn University Theses and Dissertations (Chula ETD)

RD43 rice (Oryza sativa L.) is a cross-breed between Khao Jow Hawm Suphan Buri and Supan Buri1. It is characterized as a low amylose content, soft texture, and mild fragrance. However, its potential of metabolic health effect and food application remains unknown. In the present study, daily consumption of RD43 rice containing 14.10 g of undigestible starch for 12 weeks showed a significant reduction in fasting plasma glucose, insulin, HbA1c, and HOMA-IR in prediabetic participants. Furthermore, a significant decrease in body composition including body weight, body mass index, total body fat, and waist circumference was observed after the consumption of …

Development Of A Device To Alert For Breaks To Prevent Musculoskeletal Disorders In The Neck And Low Back Among Office Workers, Pooriput Waongenngarm

Chulalongkorn University Theses and Dissertations (Chula ETD)

The objective of this thesis was to develop a device to alert for breaks to prevent musculoskeletal disorders in the neck and low back among office workers. This thesis was divided into four stages: 1) systematically review to gain insights into the effectiveness of breaks on low back pain, discomfort, and work productivity in office workers; 2) evaluation of the characteristics of perceived discomfort and postural shifts during a 4-hour sitting period; 3) evaluation of the effects of a device to alert for active breaks on preventing neck and low back pain among office workers: 6- and 12-month follow-up; and …